Second chances are not given to make things right but to prove we can be better even after a fall.

Fractured past, Unexpected future

Hooks
Maybe you're missing it, but he seems to cast thaumatic magic without a focus
Are those weird spiky looking magenta/red glasswinged butterflies watching you?
Is he reading some niche book you thought only you knew of, or eating things like coffee beans and lemons straight, or both? Probably.
Who knew that healing magic could be cast not just as a gentle stream but like a bucket of ice water to the face? Fixed injuries you didn't even know you had, though
If you hired Midnight Rose for something, he may be involved
Often can be found at Sidhe's Shambles
Appearance
Rumors
He has some manner of blackmail that keeps the Thaumaturge's Guild from confronting him
He's been seen in the company of E-Sumi-Yan multiple times
It's rumors that while on jobs, he has ruthlessly attacked a child that later disappeared, led a client to his death, refused to protect a client from non arcane assault without extra payment, and other questionable things
Some say the shadows around him behave oddly, and they hide inhuman things
Within certain establishments that cater to specific, likeminded clientele he is rarely without company.
He can read any book given to him
Connections

You Shouldn't Be Here...
Ignore the dark shadows and inconvenient truths and walk in the light